INDUSTRIAL RAW MATERIALS
Industrial raw materialsINDUSTRIAL RAW MATERIALS
磷酸氢二钠(DSP)
Disodium Phosphate
化学式:Na2HPO4.nH2O(n=0,12)
Chemical formula:Na2HPO4.nH2O(n=0,12)
分子量:Na2HPO4.12H2O--358.15, Na2HPO4--141.98
Molecular weight:Na2HPO4.12H2O--358.15, Na2HPO4--141.98
执行标准Standard executed: HG/T2965-2009(Tech grade), GB25568-2010(Food grade)
CAS号CAS Number:7758-79-4
性状:无水产品为白色粉末,有水为白色或无色流砂粒状结晶体,在空气中易风化,溶于水,不溶于醇,水溶液呈弱碱性,250℃分解成焦磷酸钠。
Property:Anhydrous goods is white powder and Hydrous goods is white or colorless, crystalline free flowing solid, efflorescence in air, soluble in water easily.
技术指标: Technical Specifications:
序号 No. |
指标名称 Specifications |
12水物 Na2HPO4.12H2O |
无水物 Na2HPO4 |
||
工业级 Tech Grade |
食品级 Food Grade |
工业级 Tech Grade |
食品级 Food Grade |
||
1 |
主含量 Main content % ≥ |
98.0 |
98.0 |
98.0 |
98.0 |
2 |
1%水溶液PH值 PH of 1% solution |
9±0.2 |
9±0.2 |
9±0.2 |
9±0.2 |
3 |
硫酸盐 Sulfate, as SO4 % ≤ |
0.7 |
- |
- |
- |
4 |
氯化物 Chloride, as CI % ≤ |
0.05 |
- |
- |
- |
5 |
氟化物 Fluoride, as F % ≤ |
0.05 |
0.005 |
0.05 |
0.005 |
6 |
重金属 Heavy metal, As Pb % ≤ |
- |
0.001 |
- |
0.001 |
7 |
砷 Arsenic, as AS % ≤ |
0.005 |
0.0003 |
0.005 |
0.0003 |
8 |
水不溶物 Water insoluble % ≤ |
0.05 |
0.20 |
0.10 |
0.20 |
9 |
干燥减量 Loss on drying % ≤ |
- |
61 |
5 |
5 |
用途:主要用作织物、木材和纸张的防火剂,锅炉软水剂,染料助剂,食品添加剂,酸度缓冲剂及釉药、焊药、焙药、电镀、鞣革的制造,焦磷酸盐的制造等。
Uses:Used as fire-extinguishing agent for fabric, woods, paper; as soft water agent for boilers; as food additive, and so on.
包装:内塑外编,每袋净重25 Kg、 50Kg 、1000Kg,贮于通风干燥处。
Packing:Plastic woven bag. Net weight 25 Kg、 50Kg 、1000Kg , store at a cool, dry and well ventilated place.
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